Answer to Question #187764 in Genetics for 8282

Question

There are two alleles for every gene, then why are there only two alleles per chromosome pair when chromsome pairs consist of over 600 genes?

Answer 1

Genetic information for human is stored in 23 chromosomes, which come in pair , one from the mother, the other from the father. Thus every individual has two copies of each gene.

In a diploid organism, one that has two copies of each chromosome , two alleles to up the individual's genotype.Diploid organisms, for example, humans, have paired homologous chromosomes in their somatic cells, and these contain 2 copies of each gene.